A、 Have I known
B、 I have known
C、 Had I known
D、 I had known
答案:C
A、 Have I known
B、 I have known
C、 Had I known
D、 I had known
答案:C
A. more than
B. as much as
C. as many as
D. than”as+原级+as"可以用来表示倍数。解析:The new model costs twice more than last year's.
A. and
B. when she
C. she
D. that she
解析:解析:not until 直到……才
A. there
B. which
C. where
D. when
A. when
B. where
C. while
D. because
解析:解析:when (当……时候)解析:where (在哪儿)解析:while (当……时候;相反)解析:because (因为)
A. 生产方式
B. 自然环境
C. 社会心理
D. 人口因素
A. it
B. its
C. their
D. theirs
解析:解析:mathematics 数学(单数)
A. is
B. has been
C. was
D. had been
解析:解析:ten days 作为一个整体看待,谓语用单数形式。(注意时态)
A. to talk…to read
B. talking…to read
C. talking…reading
D. talking…read
A. What
B. What a
C. How
D. How much
解析:解析: